Clamp for quilting-frames.



F. M. WARREN,

CtAMPFOR QUILTING FRAMES. APPLICATION FILED JUNE 21.1916- 1,2%7,187.Patented N0v.'20,1917. I

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FRANCIS MARION WARREN, or noLnorIo, ALABAMA.

CLAMP FOR QUILTING-FRAMES.

' Specification of Letters Patent.

Patented Nov.'20, 1917.

Application filed June 27, 1916. Serial No. 106,208;

To all whom it may concern Be it known that I, FRANCIS M. WARREN, acitizen of the United States, and resident of Eclectic, in the county ofElmore and State of Alabama, have invented a certain new and usefulImprovement in Clamps for Quilting-Frames, of which the following is aspecification.

My present invention relates to frames used in stretching fabric, suchas in quilting or stretching curtains, and more particularly to animproved clamp for holding the longitudinal and transverse frame membersin rigid adjusted positions.

The principal objects of my invention are to provide a clamp of thecharacter described, which will effectively hold the frame members inrigid engagement one with another, and in such a manner as to enable theuser to quickly make adjustments, such as rolling the fabric upon one ofthe transverse members, or move said transverse member toward the endportion of the longitudinal member when stretching curtains; and, toprovide clamps of the character described which present no sharp edgesor sharp projections belowrthe lower frame edges. In this connection,serious accidents have resulted when pins or other elements now incommon use, have been used to hold the frame members in adjustedposition, such elements projecting below the bottom frame members, wherethey are apt to be engaged by children passing beneath said frame, orthe hands of the operators, when quilting near the abut-ting portions ofthe frame members. These pins or other elements, being out of the normalline of vision, are dangerous devices, and it is one of the principalobjects of my invention to provide a clamp, which when used, will avoidsuch accidents.

Other objects of my invention are to provide clamps of the characterdescribed which may be used with common stock material, such asscantlings, and which require no grooving, boring, or other specificworkings; and, clamps which are inexpensive to manufacture, efiective,and durable.

Further objects of my invention will appear in the following detaileddescription, taken in connection with the accompanying drawing, forminga part of this specification, and in which drawing:

Figure 1 is a perspective view of the end portions of the frame members,showing a clamp constructed according to my invention applied thereto.

Fig. 2 is a central longitudinal sectional view through the clamp andthe abutting frame members.

Fig. 3 is a sectional view on the line 3-3 of Fig. 2, looking in thedirection of the arrow.

In the drawing, where similar characters refer to similar partsthroughout the views,

A designates a longitudinal frame member;

B a transverse member; and C, a clamp constructed according to myinvention, embodying a member I D embracing frame member A, a member Eengaging the upper face of frame member B, as well as the upper face offrame member A, and F means for clamping members D and E together.

As to the frame members A and B, it is to be observed that they requireno grooves or bores, but may be more rails or scantlings of anypractical dimensions.

Referring first to the clamp member ,0, it includes a body 4 adapted toembrace the member A, and in the example shown, is V may be formedintegral with body 4, if de-' sired.

With reference to clamp member E, it is preferably formed of anelongated strip of metal formed to provide a main body portion 10 anddownwardly extending angular end portions 11 and 12. It is preferred to,

form member E of yieldable metal in order that the body 10 may beclamped in tight engagement with the upper face of frame member B, ashereinafter described. The end portion 12 is provided with a pluralityof teeth 13 adapted to engage in the upper face of member A, and lugs 14may be provided extending downwardly from end por tion 12, with theteeth 13 therebetween, said lugs to retain body 10 longitudinally offrame member A. The end portion 11 is disposed laterally of frame memberB, and serves to hold said member adjacent the clamp member D.

The body 10 is provided with a perforation 15 through which the stem 9extends, said stem, in combination with a nut 16, comprising the means Ffor coupling and drawing the clamp members D and E together.

In assembling the clamp into operative relation to the frame members Aand B, the clamp member l) is first slipped upon the end portion ofmember A, and nut 16 raised su'liiciently to permit of the insertion offrame member B below body 10 of clamp member E and into engagement withclamp member D. The nut 16 is then turned tightly into engagement withthe upper face of body 10, which causes the teeth 13 to engage in theupper face of frame member A and draw the body 10 into close engagementwith the upper face of frame member B. When adjustment is desired, theoperator has merely to loosen nut 16 and slide the clamp, together withframe member B longitudinally of member A. In this connection, the endportion 11 serves to carry member B with the clamp and movement may beimparted to the clamp, or to the member B, and all of the parts move inunison. After the desired adjustment has been obtained, the nut 16 isagain turned tight. If it is desired to wind fabric upon the framemember B, the operator has merely to raise nut 16 suiiiciently to permitof removal of the clamp member from operative relation to frame member Band the latter may then be rotated, or the nut 16 may be movedsutficiently to permit of rotation of frame member B beneath the body10.

Changes in details may be made without departing from the spirit orscope of my invention; but,

I claim 1. A clamp of the character described, comprising incombination, a collar adapted to encircle a longitudinal member, anupright screw-threaded stem projecting from said collar, a yieldable.elongated plate adapted for engagement at one end across a transversemember at one side of the collar and provided with downwardly extendingangular end portions projecting in the same direction, one of said endportions being provided with teeth for engagement with said longitudinalmember at the opposite side of the collar and the other end portionbeing adapted to engage and hold said transverse member, said platebeing perforated intermediate its ends to receive the said stem, and anut for said stem to bind the plate and the collar against said members.

2. A clamp for crossed-members comprising a collar adapted to engage thelower member and having an upwardly extending stein, an elongated plateapertured inter mediate its ends to receive said stem and adapted forengagement at one end over the upper member at one side of the collarand having a clown-turned opposite end pro vided with teeth adapted toengage the lower member in spaced relation to the opposite side of thecollar and further provided with depending lugs at the opposite sides ofthe teeth to engage the opposite sides of the lower member and preventthe lateral displacement of the plate, and a nut on said stem fordrawing the collar and plate together to bind the opposite ends of thelatter against said members.

3. A clamp for crossed-members comprising a plate provided with adownturned end having teeth to engage the lower member and provided withdepending lugs at the opposite sides of the teeth for engagement withthe lower member to prevent the lateral displacement of the plate, saidplate being provided with a downturned portion at its opposite endadapted to engage over the upper member, and a clamping device carriedby the lower member adjacent to said opposite end of the plate andengaging the latter thereat to swing the free end of the plate and bindit against said upper member.

FRANCIS MARION WARREN.

t'lopies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

